- #1
mings6
- 11
- 0
In QFT equations, there are not only positive energy solutions, but negative ones as well.
Dirac had the hole theory. But the sea may have infinite charges and gravity effects.
And then QFT textbooks just explain the negative solution as anti-particle.
But in the lab, we measure the energies of particle and anti-particle.
Both have positive energies.
So my question is, how to explain that
anti-particle has negative energy eigen value,
but in lab observed positive energy?
If anti-matter had negative energy,
particle-antiparticle annihilation
will cancel each other's energies out
as Energy+(-Energy)=0.
But in fact we observed Energy+Energy=2 Energy(of gamma).
Thanks
Dirac had the hole theory. But the sea may have infinite charges and gravity effects.
And then QFT textbooks just explain the negative solution as anti-particle.
But in the lab, we measure the energies of particle and anti-particle.
Both have positive energies.
So my question is, how to explain that
anti-particle has negative energy eigen value,
but in lab observed positive energy?
If anti-matter had negative energy,
particle-antiparticle annihilation
will cancel each other's energies out
as Energy+(-Energy)=0.
But in fact we observed Energy+Energy=2 Energy(of gamma).
Thanks